{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{4}{c}}
\hline\hline
                    &\multicolumn{4}{c}{\specialcell{\;\;\;\;\; Drinking water fecal contamination \;\;\;\;\;}}\\\cmidrule(lr){2-5}
                    &\multicolumn{1}{c}{(1)}   &\multicolumn{1}{c}{(2)}   &\multicolumn{1}{c}{(3)}   &\multicolumn{1}{c}{(4)}   \\
\hline
Source fecal contamination&       0.318   &       0.204   &      -0.092   &      -2.751   \\
                    &     (1.048)   &     (0.425)   &     (2.979)   &    (10.082)   \\
Travel time in minutes, reported&       0.317   &       0.116   &       0.058   &       0.330   \\
                    &     (0.478)   &     (0.523)   &     (1.214)   &     (8.918)   \\
Constant            &      -0.030   &               &      -0.030   &               \\
                    &     (0.030)   &               &     (0.090)   &               \\
\hline
Sanderson-Windmeijer F-statistic: FC&        0.92   &        3.76   &        0.09   &        0.05   \\
Angrist-Pischke F-statistic: FC&        1.57   &        4.34   &        0.12   &        0.10   \\
Sanderson-Windmeijer F-statistic: Distance&        1.17   &        0.63   &        0.10   &        0.06   \\
Angrist-Pischke F-statistic: Distance&        3.86   &        0.64   &        0.87   &        0.12   \\
Predicted location  &        Desk   &        Desk   &   Algorithm   &   Algorithm   \\
Treatment unit fixed effects&          No   &         Yes   &          No   &         Yes   \\
N                   &        5729   &        5729   &        5729   &        5729   \\
\hline\hline
\end{tabular}
}
